My system Ubuntu 16.04.2 - lampstack-7.1.1-0
.htaccess is clear Opening system/webapps
.htaccess add module is Failed
==- Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at email@example.com to inform them of the time this error occurred, and the actions you performed just before this error.More information about this error may be available in the server error log.
Error log :
lampstack-7.1.1-0/apache2/htdocs/pagekit/.htaccess: Invalid command '<IfModule', perhaps misspelled or defined by a module not included in the server configuration